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Author Topic: Australian Belly Tank  (Read 1806935 times)

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Offline Milwaukee Midget

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Re: Australian Belly Tank
« Reply #4575 on: August 19, 2014, 09:41:36 PM »
Doc - Ask Don if he and the Lil' Puke are coming out for WOS - I could use a hand.
"Problems are almost always a sign of progress."  Harold Bettes
Well, I guess we're making a LOT of progress . . .  :roll:

We are NOT rebuilding . . . We are reloading.

GOD SAVE MG - The Queen can take care of herself!

Offline grumm441

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Re: Australian Belly Tank
« Reply #4576 on: August 19, 2014, 10:23:28 PM »

Nice one ya dodderey ol nuffer.....


dodderey ol nuffer.....

That's harsh
G
Chief Motorcycle Steward Dry Lakes Racers Australia Inc
Wazavudu Bellytank  Spirit of Sunshine Bellytank

Offline Dr Goggles

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Re: Australian Belly Tank
« Reply #4577 on: August 20, 2014, 05:11:37 PM »
Harsh? You know what it's like talking to them in shops here, they think you're from outer space anyway, and then you start asking for something thayve neither cot not heard of. At HF this guy led me all over the freakin shop because he couldn't understand anything I was saying, I even waved.my hands a lot......

Vittles ain't he a for moolah one guy?
« Last Edit: August 20, 2014, 05:13:29 PM by Dr Goggles »
Few understand what I'm trying to do but they vastly outnumber those who understand why...................

http://thespiritofsunshine.blogspot.com/

Current Australian E/GL record holder at 215.041mph

THE LUCKIEST MAN IN SLOW BUSINESS.

Offline Finallygotit

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Re: Australian Belly Tank
« Reply #4578 on: August 20, 2014, 06:23:19 PM »
Somehow, I think a video of that encounter would be priceless.

 :-D  :cheers:
Dan
Tucson, AZ

Offline salt27

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Re: Australian Belly Tank
« Reply #4579 on: August 20, 2014, 08:48:22 PM »
Doc - Ask Don if he and the Lil' Puke are coming out for WOS - I could use a hand.

Chris, I can't make any promises (new job) but if one or both of us are there we will definitely help you.

Gus will do any doing that needs done and I will help you drink your beer.   :-D

 Don

Offline Dr Goggles

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Re: Australian Belly Tank
« Reply #4580 on: August 21, 2014, 12:44:42 PM »
How about Salina where when checking in the guy at the Econo-slum said "Australia, is that in the United States?"...

I said " no, not yet".
Few understand what I'm trying to do but they vastly outnumber those who understand why...................

http://thespiritofsunshine.blogspot.com/

Current Australian E/GL record holder at 215.041mph

THE LUCKIEST MAN IN SLOW BUSINESS.

Offline Milwaukee Midget

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Re: Australian Belly Tank
« Reply #4581 on: August 21, 2014, 01:11:34 PM »
How about Salina where when checking in the guy at the Econo-slum said "Australia, is that in the United States?"...

I said " no, not yet".

The staff at the Rodge Mahal was more knowledgeable.

The potato salad was in season in Wendover, but when we stopped at the KFC in Salt Lake, the girl couldn't answer when I asked, "Why is it fried in Kentucky?"
"Problems are almost always a sign of progress."  Harold Bettes
Well, I guess we're making a LOT of progress . . .  :roll:

We are NOT rebuilding . . . We are reloading.

GOD SAVE MG - The Queen can take care of herself!

Offline Finallygotit

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Re: Australian Belly Tank
« Reply #4582 on: August 21, 2014, 02:27:22 PM »
How about Salina where when checking in the guy at the Econo-slum said "Australia, is that in the United States?"...

I said " no, not yet".

Scary, ain't it...... :-o
Dan
Tucson, AZ

Offline Dr Goggles

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Re: Australian Belly Tank
« Reply #4583 on: August 21, 2014, 04:37:20 PM »
I just left Freudenbergenstein. The rain stopped for long enough for me to light the fuse on the rocket that's s ending us to Portland :wink:

Few understand what I'm trying to do but they vastly outnumber those who understand why...................

http://thespiritofsunshine.blogspot.com/

Current Australian E/GL record holder at 215.041mph

THE LUCKIEST MAN IN SLOW BUSINESS.

Offline grumm441

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Re: Australian Belly Tank
« Reply #4584 on: August 21, 2014, 06:56:07 PM »
Chief Motorcycle Steward Dry Lakes Racers Australia Inc
Wazavudu Bellytank  Spirit of Sunshine Bellytank

Offline tauruck

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Re: Australian Belly Tank
« Reply #4585 on: August 21, 2014, 07:23:39 PM »
« Last Edit: August 21, 2014, 07:29:42 PM by tauruck »

Offline Elmo Rodge

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Re: Australian Belly Tank
« Reply #4586 on: August 21, 2014, 07:44:22 PM »
How about Salina where when checking in the guy at the Econo-slum said "Australia, is that in the United States?"...

I said " no, not yet".

The staff at the Rodge Mahal was more knowledgeable.

The potato salad was in season in Wendover, but when we stopped at the KFC in Salt Lake, the girl couldn't answer when I asked, "Why is it fried in Kentucky?"
We at the RODGE MAHAL pride ourselves on knowing where we are sometimes.  8-)  :cheers: Wayno

Offline twodear

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Re: Australian Belly Tank
« Reply #4587 on: August 22, 2014, 01:03:54 AM »
"4/9" -- April???

Been standing on your head too long.  Probably 9/4.

4/9 equals 4 September - day month year...can't mess that up unless you're in China where they use year month day or the USA where they can't get the order right in either case. :roll:
If enough is good and more is better, too much should be just about right.
Motorcycle Enthusiast - BMW R1200S (track bike) and R1150GSA (everything else). 1922 HD and 1946 Indian outfits for fun

Offline Reverend Hedgash

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Re: Australian Belly Tank
« Reply #4588 on: August 22, 2014, 01:07:42 PM »
Here are some preliminary findings for the Spirit of Sunshine streamliner design.

We built a series of 3d models based on hunches, desires and experience to test out some ideas in Computational Fluid Dynamic (CFD) software (which is basically a virtual wind tunnel.)

For this first run of computations we basically looked at two design options:

Design option 1
As mentioned previously I wanted to develop the idea of ground effect as per the Lotus F1 cars in a streamliner body to take advantage of the extra width our car will have over the current pencil shape designs due to the desire to not reduce the axle widths.

We tested whether it was better to have one large inverted wing covering both axles or one large wing at the rear (where we want the downforce) and a neutral one covering the front axle.

Design option 2
To maximise straight line continuance we want to have a rear fin to keep the centre of pressure behind the centre of gravity. Typically these are located in the centre of the car but in drawing up the car I kind of liked the idea that the rear fenders of the car could be extended up to make two fins. So we ran a test to see what the ramifications were for external fins compared to a central fin.

These were compared to a base line car without fins.

Offline Reverend Hedgash

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Streamliner results
« Reply #4589 on: August 22, 2014, 01:18:26 PM »
Preliminary feedback says that the double wing version of the ground effect is superior to the single version in that there is less lift so we will go down that path for now.

As for the twin fins versus the single fins I'll quote Steve Ambrose who is our man helping interpreting our data,
 
"The model  with the central fin (compared to the model with no fin) creates a smaller increase in drag  (approx. 2%) as opposed to 10% with the fins at the wheels. These increases are in the pressure drag (the drag caused by the shape of the object, not the drag incurred in the wake behind the car). Having the fins at the wheels also appears to generate lift, which is obviously not desirable, and so a clear conclusion is that the fin in the centre is better."

That is a significant difference in drag and much more than double so it is more than there just being two of them. I may try some different shapes to see if we can get it back in line but the tests are currently putting pay to this design idea.